A052995 - cp's OEIS frontend

A052995 Expansion of 2x(1 - x)/(1 - 3*x + x^2).

n	a(n)
0	0
1	2
2	4
3	10
4	26
5	68
6	178
7	466
8	1220
9	3194
10	8362
11	21892
12	57314
13	150050
14	392836
15	1028458
16	2692538
17	7049156
18	18454930
19	48315634
20	126491972
21	331160282
22	866988874
23	2269806340
24	5942430146
25	15557484098
26	40730022148
27	106632582346
28	279167724890
29	730870592324

[0, 2, 4, 10, 26, 68, 178, 466, 1220, 3194, 8362, 21892, 57314, 150050, 392836, 1028458, 2692538, 7049156, 18454930, 48315634, 126491972, 331160282, 866988874, 2269806340, 5942430146, 15557484098, 40730022148, 106632582346, 279167724890, 730870592324]

cp's OEIS Frontend

A052995 Expansion of 2x(1 - x)/(1 - 3*x + x^2).

Table of values

List of values

cp's OEIS Frontend

A052995 Expansion of 2*x*(1 - x)/(1 - 3*x + x^2).

Table of values

List of values

A052995 Expansion of 2x(1 - x)/(1 - 3*x + x^2).